10131640 has 32 divisors (see below), whose sum is σ = 22912560. Its totient is φ = 4032000.

The previous prime is 10131623. The next prime is 10131689. The reversal of 10131640 is 4613101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9115 + ... + 10165.

Almost surely, 2^10131640 is an apocalyptic number.

10131640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10131640 is an abundant number, since it is smaller than the sum of its proper divisors (12780920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10131640 is a wasteful number, since it uses less digits than its factorization.

10131640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 10131640 is about 3183.0237196729. The cubic root of 10131640 is about 216.3847167534.

Adding to 10131640 its reverse (4613101), we get a palindrome (14744741).

The spelling of 10131640 in words is "ten million, one hundred thirty-one thousand, six hundred forty".